Système d'alerte sur les astéroïdes proches de la Terre de la NASA

• •Token Bot Slack ou URL Webhook

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  "name": "NASA Near-Earth Asteroid Alert System",
  "tags": [],
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        "content": "## NASA Asteroid Alert Workflow\n\nThis workflow automatically checks for near-Earth asteroids twice daily using NASA's API and sends alerts to Slack and Google Calendar.\n\n**Process:**\n1. Runs on a 12-hour schedule.\n2. Fetches asteroid data for the next 14 days.\n3. Filters for significant objects.\n4. Notifies via Slack & creates Calendar events."
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        "jsCode": "// Calculate date range for API request\nconst today = new Date();\nconst nextWeek = new Date();\nnextWeek.setDate(today.getDate() + 14);\n\n// Format dates as YYYY-MM-DD\nconst formatDate = (date) => {\n  const year = date.getFullYear();\n  const month = String(date.getMonth() + 1).padStart(2, '0');\n  const day = String(date.getDate()).padStart(2, '0');\n  return `${year}-${month}-${day}`;\n};\n\nreturn [{\n  json: {\n    start_date: formatDate(today),\n    end_date: formatDate(nextWeek),\n    today: formatDate(today),\n    next_week: formatDate(nextWeek)\n  }\n}];"
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        "content": "## ⚙️ NASA API Configuration\n\n**Action Required:** Replace the default `DEMO_KEY` with your own NASA API key in the 'Get an asteroid neo feed' node.\n\n1. **Get a free key at:** [api.nasa.gov](https://api.nasa.gov/)\n2. **Why?** The demo key has very strict rate limits and is not suitable for regular use."
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    {
      "id": "d4e5f678-90ab-cdef-1234-567890abcdef",
      "name": "Filtrer et Traiter les Astéroïdes",
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        "jsCode": "// Get all individual asteroid items from the input\nconst allAsteroidItems = $input.all();\n\n// Configuration thresholds (テスト用の緩い値)\nconst MAX_DISTANCE_KM = 75000000000; // 75 billion km\nconst MIN_DIAMETER_METERS = 1;       // 1 meter\n\nconst filteredAsteroids = [];\n\n// Loop through each asteroid item that was passed to this node\nfor (const item of allAsteroidItems) {\n  const asteroid = item.json; // Get the actual asteroid data from the item\n\n  // Ensure the necessary data exists before trying to process it\n  if (asteroid && asteroid.close_approach_data && asteroid.close_approach_data.length > 0) {\n    const missDistance = parseFloat(asteroid.close_approach_data[0].miss_distance.kilometers);\n    const maxDiameter = asteroid.estimated_diameter.meters.estimated_diameter_max;\n    const minDiameter = asteroid.estimated_diameter.meters.estimated_diameter_min;\n    const avgDiameter = (maxDiameter + minDiameter) / 2;\n\n    // Apply filters\n    if (missDistance <= MAX_DISTANCE_KM && avgDiameter >= MIN_DIAMETER_METERS) {\n      filteredAsteroids.push({\n        name: asteroid.name,\n        id: asteroid.id,\n        approach_date: asteroid.close_approach_data[0].close_approach_date,\n        approach_date_full: asteroid.close_approach_data[0].close_approach_date_full,\n        miss_distance_km: Math.round(missDistance),\n        miss_distance_lunar: parseFloat(asteroid.close_approach_data[0].miss_distance.lunar).toFixed(2),\n        diameter_min_m: Math.round(minDiameter),\n        diameter_max_m: Math.round(maxDiameter),\n        diameter_avg_m: Math.round(avgDiameter),\n        velocity_km_h: Math.round(parseFloat(asteroid.close_approach_data[0].relative_velocity.kilometers_per_hour)),\n        is_potentially_hazardous: asteroid.is_potentially_hazardous_asteroid,\n        nasa_jpl_url: asteroid.nasa_jpl_url,\n        absolute_magnitude: asteroid.absolute_magnitude_h\n      });\n    }\n  }\n}\n\n// Sort by closest approach distance\nfilteredAsteroids.sort((a, b) => a.miss_distance_km - b.miss_distance_km);\n\n// Return the final list of asteroids that met the criteria\nreturn filteredAsteroids.map(asteroid => ({ json: asteroid }));"
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        "content": "## ⚙️ Filtering Criteria\n\nThis node filters asteroids to find only significant ones. **You should adjust these values.**\n\n**Default (Test) Values:**\n- `MAX_DISTANCE_KM = 75000000000` (very far)\n- `MIN_DIAMETER_METERS = 1` (very small)\n\n**Recommended Values:**\n- `MAX_DISTANCE_KM = 7500000` (7.5 million km)\n- `MIN_DIAMETER_METERS = 100` (100 meters)\n\n**Action:** Edit the code in this node to customize your alert sensitivity."
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      "name": "Vérifier si des Astéroïdes sont Détectés",
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              "operator": {
                "type": "number",
                "operation": "gt"
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              "leftValue": "={{ $items().length }}",
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    {
      "id": "f6789012-3456-7890-abcd-ef1234567890",
      "name": "Formater les Messages d'Alerte",
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        "jsCode": "// Format message for Slack/Email\nconst asteroids = $input.all();\nconst messageLines = [];\n\nmessageLines.push('🚨 *NEAR-EARTH ASTEROID ALERT* 🚨');\nmessageLines.push('');\nmessageLines.push(`Found ${asteroids.length} asteroid(s) meeting alert criteria:`);\nmessageLines.push('');\n\nasteroids.forEach((item, index) => {\n  const asteroid = item.json;\n  const hazardIcon = asteroid.is_potentially_hazardous ? '⚠️' : '✓';\n  \n  messageLines.push(`*${index + 1}. ${asteroid.name}* ${hazardIcon}`);\n  messageLines.push(`   • Approach Date: ${asteroid.approach_date}`);\n  messageLines.push(`   • Distance: ${asteroid.miss_distance_km.toLocaleString()} km (${asteroid.miss_distance_lunar} lunar distances)`);\n  messageLines.push(`   • Size: ${asteroid.diameter_min_m}-${asteroid.diameter_max_m} meters`);\n  messageLines.push(`   • Speed: ${asteroid.velocity_km_h.toLocaleString()} km/h`);\n  messageLines.push(`   • Details: ${asteroid.nasa_jpl_url}`);\n  messageLines.push('');\n});\n\nmessageLines.push('_Data source: NASA Near Earth Object Web Service_');\n\nreturn [{\n  json: {\n    slackMessage: messageLines.join('\\n'),\n    emailSubject: `🚨 Asteroid Alert: ${asteroids.length} Near-Earth Object(s) Detected`,\n    emailBody: messageLines.join('\\n').replace(/\\*/g, '').replace(/_/g, ''),\n    asteroidCount: asteroids.length,\n    asteroids: asteroids.map(a => a.json)\n  }\n}];"
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    {
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      "name": "Envoyer l'Alerte Slack",
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      "parameters": {
        "text": "={{ $json.slackMessage }}",
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": "C09KTEYDKDY",
          "cachedResultName": "サポートチーム"
        },
        "otherOptions": {
          "mrkdwn": true
        },
        "authentication": "oAuth2"
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      "credentials": {
        "slackOAuth2Api": {
          "id": "BX5igCUXrjyHLAU1",
          "name": "Slack account 5"
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        "content": "## ⚙️ Slack Configuration\n\n**Setup Required:**\n1. Select the 'Send Slack Alert' node.\n2. Add your Slack OAuth2 credentials.\n3. Choose the channel for alerts (e.g., `#asteroid-alerts`).\n\nEnsure the n8n app has permission to post in the selected channel."
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    {
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      "name": "Séparer les Astéroïdes Individuels",
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      "parameters": {
        "include": "selectedOtherFields",
        "options": {},
        "fieldToSplitOut": "asteroids",
        "fieldsToInclude": "emailSubject, slackMessage"
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      "typeVersion": 1
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      "name": "Configuration du Calendrier",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      "parameters": {
        "width": 280,
        "height": 264,
        "content": "## ⚙️ Google Calendar Setup\n\nThis branch creates a calendar event for *each* asteroid found.\n\n**Setup Required:**\n1. Select the 'Create an event' node.\n2. Add your Google Calendar OAuth2 credentials.\n3. Select your desired calendar.\n\n**Customization:** You can modify the event title, description, and even add color-coding based on hazard level."
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        "content": "## No Asteroids Branch\n\nThis is the 'false' branch of the IF node. It's triggered when no asteroids meet the filtering criteria.\n\nThe **NoOp** node does nothing, ending the workflow silently.\n\n**Idea:** Replace this with a node that sends a daily \"All Clear\" message."
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      "typeVersion": 1
    },
    {
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      "name": "Obtenir un flux NEO d'astéroïdes",
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      "parameters": {
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        "additionalFields": {}
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        "nasaApi": {
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        "start": "={{ $json.asteroids.approach_date_full }}",
        "calendar": {
          "__rl": true,
          "mode": "list",
          "value": "t.minamig20@gmail.com",
          "cachedResultName": "t.minamig20@gmail.com"
        },
        "additionalFields": {
          "summary": "小惑星接近アラート",
          "description": "=接近距離: {{ $json.asteroids.miss_distance_km.toLocaleString() }} km \n直径: 約{{ $json.asteroids.diameter_avg_m }} m \n速度: {{ $json.asteroids.velocity_km_h.toLocaleString() }} km/h \n詳細URL: {{ $json.asteroids.nasa_jpl_url }}"
        }
      },
      "credentials": {
        "googleCalendarOAuth2Api": {
          "id": "5lKtFJo2lfQL9TkJ",
          "name": "Google Calendar account 12"
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      },
      "typeVersion": 1.3
    },
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